Let’s Challenge SPIDER

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Vladimir Liberzon 👤 Member for 25 years 4 months

Mike,

I did not mean George example but general production scheduling.

If I don't know the next work then I don't know necessary tools and what time is necessary for tools adjustment. So I cannot add changeover activity because don't know what work will be next and what time will it take. It is not actual in project management but may be critical in production scheduling. I think that we will add this feature to Spider since we have more and more customers in manufacturing.

Did you try Asta with my example?

Best Regards,

Vladimir

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Mike Testro 👤 Member for 20 years 5 months

Hi Vladimir

I did not see any item about changing tools in Georges thread - just applying Resource R1 to a number of different tasks in different projects.

That is the same as allocating Crew 1 to different sections of a pipeline.

If there is to be a time required for tool change over then that could be done with a simple task set between changeover tasks or alternativel a lead time on the link if the calendars are compatible.

Best regards

Mike T.

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Vladimir Liberzon 👤 Member for 25 years 4 months

George,

Spider Project is used for production scheduling in Russia, Ukraine and Brazil. Recently I received a letter from Brazil where it was written that Spider is used for production scheduling instead of Preactor because Spider schedules are much shorter.

But Spider still does not model time necessary for changing the tools when there is a need to do different type of job. This is serious restriction if these times are large.

You described famous NP-complete problem and Spider does not guarantee the optimal solution but its iterative heuristics finds the solution that will be close to optimal. I added fourth project (machine) to the example below to show what Spider will do solving your task.

Mike, I am curious if Asta will produce the same (or better) schedule for the same problem out of the box (without applying user defined priorities). Please enter the same data into Asta and show us the result. Photobucket Regards,

Vladimir

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Mike Testro 👤 Member for 20 years 5 months

Hi George

I will be interested to hear Vladimir's response but this is a matter of routine resource allocation in Asta PowerProject.

Best regards

Mike T.

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George Mejtsky 👤 Member for 15 years

Vladimir,

I respect you, and I agree with your postings. In fact, I cannot find even one sentence where I would not agree with you. You proposed to suggest hard tasks so I will try my luck. I am coming from production scheduling field, and I wonder whether your Spider Project software can solve some of shop scheduling problems. I will describe such problems by project scheduling terms.

I have several projects: The first project P1 starts with activity P1A1. The activity P1A1 requires resource R1 for p1a1r1 minutes, and then the next P1 activity A2 requires resource R2 for p1a2r2 minutes. The third activity A3 of P1 requires resource R3 for p1a3r3 minutes, etc. The second project P2 starts with activity P2A1 requiring resource R1 for p2a1r1 minutes, and then the next P2 activity A2 requires resource R2 for p2a2r2 minutes, etc. The third project P3 starts with activity P3A1 requiring resource R1 for p3a1r1, etc. So each project has a sequence of activities and each activity requires a resource for a fix time. Each resource Ri can be assigned to only one activity (resource capacity is 1). This is a resource allocation problem. The question is how to allocate each resource so that to minimize the overall completion time of all projects.

I guess Spider Project software can solve this type of problems. Can you tell me if and how it can be done in Spider?

Best Regards,

George

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



Yes, it is a useful visual report, but my point is that it shines in linear projects.



And while contrary to other linear diagram tools, in Spider all the PDM functionalities are also available. The PDM metrics matter as much or even more, still if a linear job, the Graph is just a representation.



Best Regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rafael,

for high rise buildings it is also very useful.

The metrics consists of floors (or levels like in your example) and Lnear Diagram shows what work at what floor will be done at what time.



But in any case it is just one of many reports that may be used along with the Gantt Charts.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months





Well, it shines in linear jobs such as pipelines and roads not in building construction.

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rashid,

if you will download Demo version of Spider Project from http://www.spiderproject.ru/demo_e.php you will find there sample project that includes construction part (a small part of the resl project), financing, and future profits.

In this project you will find multi-resources (crews) assigned to construction activities, activity durations that are calculated basing on their volumes of work and assigned resources productivities, cost components and cost centers, cash flows that includes expenses and financing, expenses and incomes that are calculated with cost discounting, materials that are assigned per work volume units, resources that work in shifts. In this project you can try cost and material levelling.



It is small part of many unique Spider Project features but you will not be able to repeat this project using other softwares including P6.



Spider Project optimizes resource constrained schedules. Recently Rafael uploaded small and simple project but P6 produced optimal schedule (the same as the schedule produced by Spider Project) only after manual assignment of activity priorities. Impossible in large projects. And in many real projects the difference of schedule durations is huge.



I can add skill scheduling, trend analysis, etc.



If you ask about some reports I suggest to look at Linear Diagram - it is Time-Location Chart that is one of many projectt reports.



If you want to see something specific please ask.

This thread was created for challenging Spider Project - I am still waiting for hard tasks. If you need something that other PM software does not do, ask if Spider Project can do it. Two options - I can explain how Spider does it, or you will suggest Spider Project improvement.



Best Regards,

Vladimir

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Rashid Iqbal 👤 Member for 16 years 2 months

Vladimir,



You sound well conversant with both spider and primavera...can you attach a layout of spider that you think P5 cant produce. Thanks please do it at your convinience.



Regards

R

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Safak Vural 👤 Member for 18 years

Dear Vladimir,



I personally request Russian papers or presentations if there are any. My Russian is not good enough for that kind of stuff but I can make them translated at my work easily.



Regards,



Safak VURAL

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Vladimir Liberzon 👤 Member for 25 years 4 months

Hi Safak,

I am sorry that there are few Spider papers and presentations in English. Don’t forget that it is Russian software. The documentation that is created by Russian corporations is in Russian and Brazilians publish their papers in Portuguese.



Spider site contains papers and presentations mostly made at different PMI events. At these presentations I talked about the methods that we use trying to avoid mentioning Spider. Spider Project was and is used for management of many oil&gas construction projects in Russia, Ukraine, Belarus. Examples; Caspian Pipeline, Blue Stream, Nord Stream, East Siberia – Pacific Ocean, and other pipelines, development of Bovanenkovo Gas Field.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Safak,



In Spider Project you can run Scripts from outside Spider so you can have access to all the power Reference Book provides. If your software can access text files then it can communicate with Spider Project, if I understood correctly what Vladimir once mentioned in one of his postings.



Perhaps it is not a good idea to have a direct link to the database fields as this can corrupt integrity of the data, Reference Books provides the link. Field relationships in CPM are not as simple as relationships within a database.



I do not have such a requirement in my jobs but Spider can provides for the most demanding requirements, on my part you are welcomed with your questions, I believe this kind of questions were missing and your postings will add value to the discussion.



If I am right maybe in a future we will be exchanging script templates to communicate with Oracle/Primavera/Microsoft/SAP/....



Best regards,

Rafael

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Safak Vural 👤 Member for 18 years

Dear Mr.Liberzon and Mr.Davilla,



First of all I want to congratulate you for the battle you continue to make people hear you. I wish you to continue your way and conquer more castles in project controls territory.



I am trying to follow this thread with playing in your demo. Everything seems so perfect user friendly and solution oriented in software. Personally ASTA – Power Project seems good scheduling software also. But the ORACLE® and PRIMAVERA® are offering some other aspects as well. Also all my clients are commitetd to them. In many projects I touch or hear (from colleagues etc.) cost control - oracle rdb, estimating and quantity surveying sql rdb, HR and personnel time recording oracle and sql rdb, QA/QC sql rdb ……. List can be longer. Data collecting is becoming easier and IT works is becoming user-friendly everyday. SPIDER® has to fight with these kinds of integrated packages in the market also due to availability of direct integration for PRIMAVERA® products with that kind of databases.



Can I challenge SPIDER® team not with software with studies, papers, procedures etc. If you check all major construction companies in OIL&GAS almost all their project control documentation based on duration based CPM where majority of them referencing PRIMAVERA® directly.



Can you provide more documents about projects which used SPIDER® and Critical Chain Project Management (Like Urucu-Manaus Gas Pipeline)? It is not easy to find papers, studies etc. supporting Critical Chain. Can you reference papers? Can you create a package that the Project Controls for Critical Chain approach with all main and support processes including inputs, outputs, responsible items, customers, where you can include SPIDER® in one or more of this processes. I checked all publications SPIDER® web page but I cannot find anything which is answering the questions above. If there are academic references you can provide I will be happy also. I will try to access them from my university library in my vacation times at my hometown.



Regards,



Safak Vural

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



You got it very right; my question was about scalability and transfer of resource definitions.



The great thing about it is that scaling is defined at the activity level so when scaling your fragments only scalable activities will be scaled. If you have a fragment for mat foundations, you would transfer several activities whose duration will depend on the scale but others will not be changed such as concrete curing.



Maybe you cannot say all activities will either be fully scalable or not scalable, a few will fall in between. I would dare to say over 95% will be covered and the remaining with a simple adjustment can be handled. Hey you are transferring even resource definitions.



Please don’t complicate fragments, keep is as simple as it is, cannot get any better.



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rafael,

I don’t know software packages that have similar functions.



This is the way we create complex project models.

Fragments describe typical work packages for certain work quantity (1km, 10m3, etc.). Inserting the fragment project planner defines the real volume of work at the certain work package and fragment data will be adjusted automatically.



With fragment library it is easy to create large project models:

Project Planner creates WBS, then inserts project fragments at work packages level, then creates links between activities of different work packages. Everything else is already there - resources, costs, calendars.



Fragment Library is the main element of the corporate PM system.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



Thanks you for your briefing on the application of fragments.



…”For repeating sets of activities we suggest to use the typical fragments library that consists of small projects that model typical sets of works. You can use insert other projects as the new phases. This is the way we use working with the fragments. The software asks what to do with activity codes and volumes. Activities may be scalable or not (look at activity properties). If scalable then their volumes, durations, etc. will be multiplied by the user defined number”.



I noted that even resources definition is transferred so if new resources are required these will also be transferred.



This feature of being able to scale the fragments is something I have never seen before. With Primavera SureTrak I did not even had the basic functionalities of fragments. Do you know if such “scalable” and transfer of resource definitions are features available in other software?



Best regards,

Rafael

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Scarllet Pimpernel 👤 Member for 16 years 10 months

Dear Raffy D,



Please do not impose to Raffy what to do and what not to do.



Raffy Davila did a good work by helping the PP community understand Spider Project Management better than before. No other PP member have ever done what Raffy did here. And it did give the PP community a hope that somewhere there is a better construction project management software than Primavera P6.



If you really feel that your software is the best ever, you can always plead for your case here in PP.



Remember the tenets in PP is Freedom. and through freedom only mankind can achieve the best ever.



Thank you,

Scarlett

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Vladimir Liberzon 👤 Member for 25 years 4 months

Hi Scarlett,

Spider Project is already the software of choice for construction project management in Russia and is used by most Russian construction companies. It is also used by large corporations involved in construction of plants, dams, and other facilities. But it is also used in other industries including IT.



We know that any project management software is a tool that shall help in managing projects. Without proper project management system the software will be used for drawing charts and in this case Spider Project advantages are useless. So we help to implement not just Spider but project management systems for our customers. Our company is involved not only in the software development and customers support, but also in consulting, training and project management. We manage construction projects for our customers and thus have very good understanding of construction management needs.



But we do not believe in advertisements. We never marketed Spider Project. Our promotion – happy customers who told others about their satisfaction. In any case we are not able to compete with Oracle in software promotion and we do not want to sell the software to incompetent buyers, who will use it for drawing.



We have branches in other countries with very competent managers. They use the same approach. It works but it is a slow way. We have customers in 27 countries and many of them found Spider Project in the Internet. They used other softwares but understood Spider Project advantages. Our potential customers are those who want better planning, shorter schedules, resource usage optimization. It is a minority but we are interested to work with this minority. We are afraid just to sell the software, it is dangerous for Spider Project reputation.



So we have no strategic plan for Spider Project promotion, we just make it better and better each month and hear customers needs. I’ll be grateful for your ideas.



Thank you and Best Regards,

Vladimir

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Raphael M. Dua 👤 Member for 25 years 4 months

Scarlett P



What a narrow view of the world of Project Management software you have



If you visit the Planning Engineers site www.planningengineers.org and go to the survey tab, you will see a large number of software packages.



My own software Micro Planning X-Pert for Windows and Mac happily keeps selling to all industries and I must admit I have seen in recent times an upsurge in small to medium sized builders buying my product, especially as they now seem to be moving towards earned value and of course resource scheduling.



I would suspect that more than 80% of users do not want the complications of SPIDER, P5 OPP, Astra Power PERT



My client base justwants to plan and schedule quickly inexpensively and get the best results with the need for a vast SQL and DB infrastructure



Rafael



Frankly I think it is time to stop this non stop let’s Challenge Spider and get on with some work for your client



The challenge for our limited time now is to provide some help to Haiti and help them rebuild and do something practical.



I am looking at trying to offer the UN some Planners and Schedulers using our skills to help the people on the ground, as we did for WHO the 2004 Tsunami in Indonesia and Asia







Raphael

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Scarllet Pimpernel 👤 Member for 16 years 10 months

Good Day to all,



I did read this tread and got lost along the way. With 300++ post and 4,500++ viewers, whats now?? How will it benifit me or the common planner?



to shoot down Primavera, I seems to agree with one post that Primavera indeed was highjack by IT. Primavera started as a construction project management software and end as an IT project management software. It should not be a surprise knowing Oracel bought Primavera.



So, there is no point in criying against Primavera, it will just die a natural death, irrelevant to construction project management.



I would also say, forget Microsoft Project for idiots.



But there is new hope because we have Spider as a project management software.



My question to Vladimir: what is your strategic plan to make Spider the software of choice for construction project management professional?



Thank you,

Scarlett

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Vladimir Liberzon 👤 Member for 25 years 4 months

Hi Rafael,

if you will corrupt the database using reference-books it will be very useful for Spider improvement. Thank you for trying and inform me if you will find the way to do it.

The reference-books can be used for anything like creating the dictionary of activity and resource names that can be used for automatic creation of many languages project model (English, Spanish, Russian, etc.).

I will discuss deleting option with our programmers when will return to Russia.

Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



By creating a custom field and a formula I can reassign ID codes to my activities with ease but reading about Reference Books I crossed with the statement that it is also possible to transfer data to a key field in addition to transfer fields. I used Reference Books as another way to change my activity ID’s, a key field, and it worked, this will make it easier to change activities ID’s in all my versions or prior updates.



By the way on purpose I duplicated some values and did not transferred duplicates, some day I will find a way to corrupt the database using Reference Books. Perhaps if you add the functionality to delete records using Reference Books the banana peel will work, like Wile E Coyote I will keep trying.



Best regards,

Rafael

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



Probably I would say add the following transfer Method: "Delete matching rows" to the Data Transfer Setup dialog box. By matching I mean matching key field only.



With all the existing options for "Transfer to" and "What to transfer". As to have same control on these two options. Maybe "Column type" dimmed when selecting this new option, not sure about Data Transfer Options buton.



The basic idea is not only being able to add rows but also to delete multiple rows and then by clicking on any other option for "Transfer method" you can get them back using the same Reference Book.



I understood your proposal and believe that what can be done at the moment is far superior to what can be done with other software. It is just that Reference Books seems so logic it is not difficult to imagine using these to systematically delete table rows (in the hundreds), to use them to repeat the deletion in other schedule update versions and to use them to restore the deletions without missing a single deletion and restore.



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Hi Rafael,

though this is rarely required it is easy to add new option to others.

So they will include:

1) Modify existing objects,

2) Modify existing and Add new objects, and new

3) Replace all objects.

Did I understand your proposal properly?



In my previous post I explained how it can be done at the moment.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Augustin



Spider Project structure, screens, functionalities... are so well designed that will allow the developer to improve on it for many years to come in ways a few others will be able.



If I used Primavera SureTrak for 10 years and it was never improved, most probably I will use Spider for twice these years.



Vladimir,



If good for 3,200 additions then why not also good for 3,200 deletions.



If I want to apply the deletions of say 20 links to 8 versions, for forensics, it would be 160 deletions, if I want to apply it to 20 different schedules that used the same logic, also to 8 versions of each it would be 20x20x8 = 3,200 deletions.



Best Regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Hi Rafael and Augustin,

yes, reference-books can be used as backups.

An example:

You created reference-book of the project hard dependencies.

Then you added soft dependencies.

Then you decided to delete all soft dependencies and restore the initial network logic.

For this you shall open Links table, select and delete all links, then open reference-book with the stored links and transfer all of them to the project.



Best Regards,

Vladimir

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Augustin Purnus 👤 Member for 21 years 2 months

Hi Rafael,



You are right. I explained only what can be done now.

You are talking about a new feature which requires some developments. I don’t know what means from this point of view, what effort should require, but thinking “out of the box” is the best way problems can be solved.



What I really love at Spider Project Team is that if there is a new feature required by the users which improved the solution, than they will do it very quickly.



Best regards,

Augustin

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Rafael Davila 👤 Member for 22 years 3 months

Augustin,



The data transfer default might be to transfer to existing rows only but you have the option to create new rows as well as full transfer. I was thinking in an option to delete matching rows. In this way you can apply your deletions to any previously updated version as well as to restore it back without the need to create additional versions and without the need for additional backups; your backup is the Reference Book per se unless you want to back it up also.



Also if you want to undo it would be a single or a few protocol of actions lines.



Data Transfer



Remember we all have our particular needs and ways of doing things, keep sharing yours, we all need other point of views.



Best regards,

Rafael

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Augustin Purnus 👤 Member for 21 years 2 months

Rafael,



The Reference Books will transfer data. If it is empty than you will transfer “nothing”.



It is easier to simply go to the Links Table, select all links and delete them. Then, transfer the new links. You can create different links in different tables and transfer them into the project. To keep the scenarios, save as with different version numbers.



I was just playing with Switch type of activity and Switch Condition for the links. It shows similar with the decision tree (if, than, else). I had last year a project where the client wanted to see different activity sequences based on a decision point, like Switch. I didn’t have at that moment such feature, but I’m happy it is available now. However, I look forward for the improvements Vladimir told.



Except Pertmaster and probably Open Plan which apply Monte Carlo and Conditional Branches, I don’t know other solutions with such a feature.



Best regards,

Augustin

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir or Augiustin



I can use Reference Books to transfer links (precedence/activity links) from a table. What if I want to use the Reference Books to erase these links, can it be done? In this way I can toggle on and off unlimited combinations of links to perform what if analysis for my links.



Does it make sense to you?



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Hi Rafael,

we use Spider Project with Windows 7 at our office and did not meet problems yet. Spider Project also works without problems with Windows simulators for MACs and Linux.

I do not expect problems but let us know if you will meet any.



Switch activities will be improved soon. Now you can manually decide if it is in position Yes or No and depending on this position different network branches will be used. Later Yes or No will be calculated basing on user defined conditions. I expect that these improvements will become available in February.



Reference-books permit to set corporate standards, rules, pools, and a lot more. I just cannot imagine how PM corporate system can be implemented without norms and standards.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Augustin Purnus



I followed your advice for looking into Reference Books, I thought it was merely for job templates and found it is much more powerful and safer than using OBDC to connect to the database.



Because it is so powerful it ramifications are many, you can even use it to control user access down to the individual field level; for the moment I will skip this part on users’ access and continue with other applications for the Reference Books.



Then I will explore the Portfolio functionality and will eventually have a few questions related to shared resource allocation and project updating under a portfolio.



In the in-between if you can give me some hints about the new switch activity I would appreciate it as the English Help for this functionality is lagging a few months of updates and could not find an English paper on it at the Spider Site. I understand this is just the start as this functionality will be further expanded, some fun with it will do no harm.



Best regards,

Rafael


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Augustin Purnus 👤 Member for 21 years 2 months

Rafael,



From my experience, changing a working Windows version which a new one without knowing its behavior is very challenging. It will give you nothing else than time consuming. When I changed my computer it came with Vista. It was a disaster, and therefore I downgrade the system to XP. I am happy with it.



I think Vladimir will tell you there is no issue, or it will be solved fast.



I wonder what other challenges did you find for Spider Project.



Best regards,

Augustin

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



I am buying a new PC, therefore I am interested into knowing how compatible Spider Project is with Windows 7 Pro 32 Business.



I am ruling out Windows 7 Pro 64 but would like to know also about it. I understand some hardare drivers for a 64 bit operating system can create issues and wonder about the HASP key, though believe this should not be an issue.



Best regards,

Rafael

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Rafael Davila 👤 Member for 22 years 3 months

Mike,



In Spider Project they are called signals, I am not there yet but will be looking on how to set them green when our little frogs start singing.



Cells in the user fields can be marked with markers of various colors and shapes; this notifies the user that various values in the given field get in certain intervals. A set of intervals, to each of which a certain color is appointed, is called Signal



This functionality is also available in MS Project as well as in many others.



If you set a marker for every possible range then it is too much, better assign a marker to a couple of ranges to be highlighted, otherwise by highlighting everything the purpose is lost. Combine shapes as to differentiate, not just colors, also consider using a few columns for your markers to make it easy to search your ranges.



Best regards,

Rafael



P.S. My personal HP Laserjet is color blind, only knows B&W.

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Mike Testro 👤 Member for 20 years 5 months

Hi Rafael



I liked your little frogs - we had a similar chorus outside our bungalow in Nigeria.



Best regards



Mike Testro

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Mike Testro 👤 Member for 20 years 5 months

Hi Gentlemen



I have just started using the PowerProject traffic light symbols where you set up parameters and the light in the column changes colour.



For instance if the formula compares planned end with progress end on any particular task and the spread is 5 to 10 days difference then:



Green = anything up to 5 days

Amber = anything between 5 - 10 days

Red = Anything over 10 days



The symbol shows on any level and with multiple projects so management have a quick and visual reference as to where there may be problems.



It can be set up to show reduction in float if there is no baseline.



Best regards



Mike Testro


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Rafael Davila 👤 Member for 22 years 3 months

Better than in a report, it will be available always when you want it and error free.



Happy New Year

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rafael,

very soon (I think that in January) this filter will become standard. So it is not necessary to create special formula.

Happy New Year!

Vladimir


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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



I am creating a filter for out-of-sequence but first need to verify the following formulas I will transfer along with the custom fields with ease using Ref.Books. Are these correct?



OOS2



It might be that EarlyStart is the correct field to use in formula 5 as might differ with AsapStart when split is allowed or after progress, just could not find the definition/formula for the EarlyStart field.



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rafael,

I don’t know P3 limits for concurrent users. I only remember that the number of project activities is limited by 100000. There are also limits on the project and activity code lengths and the number of calendars.

Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

User Code



Vladimir,



You are right, it is not limited to four characters but to hundreds, the same as for activity codes. I could not find the limit.



Do you know P3 practical limit for concurrent users? Just as a comparison for my knowledge and the knowledge of my clients.



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rafael,

I don’t think that you will meet any problems with the reference-books. They are used in Spider Project from the very first release in 1993 and never caused problems for Spider users. They may be created from the Excel spreadsheet but then become internal.



I don’t remember about four characters. Actually Spider Project has no limitations on any code length.

Spider Project uses the model of group work when the database is replicated in accordance with Responsibility structure and can be updated at any moment collecting current data from the unlimited number of project users. I don’t know the limits, we never met problems with this. But actually there are moderate number of people that work with the same models. I don’t remember the customer who has more than two thousands projects in one portfolio and more than several hundred users that work together with the same model.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



For your knowledge, I am starting to use Corporate Reference Books. It worked fine for my transfer of resource definitions and assignments from my sample job with my resource loading into your file modeling payments but without my resources.



Because previously I had an unpleasant experience with P3 when linking the database to a spreadsheet using ODBC Btrive drivers to the point it locked the software and I had to reformat the hard disk and re install everything I will explore this functionality to see if something like this can happen. Up to now not even intentionally it has allowed me neither to corrupt the data files nor to lock the software.



If I cannot find a way to corrupt the database nor to lock the software with this functionality it will not be of my occasional use but of frequent use as it is by far more functional than just linking to an external spreadsheet.



I read in spider Help you can set up a four characters code for your users, this includes the alphabet and special symbols, so in theory if 40 possibilities per character yields over 2.5 million users (40x40x40x40), is this correct? And what about concurrent users, how many is the theoretical and the practical limit? Can it be as long as there is a record available, not still locked?



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Rafael,

I did not meet Spider Project limits.



Five years ago the levelling of 270 000 activities project on the computer with 1GB of Memory and Windows XP took 4.5 minutes. It took much longer (about half an hour) on another notebook with 256 Mb of memory because of swapping. Now computers are faster though Operating Systems require more memory.



It may take longer if the projects have complex resource assignments but still reasonable time. The scheduling is of course much faster (measured in seconds).



Romtelecom at last PMI COS conferece presented management of their 2000 projects portfolio.



I tried test runs (scheduling, levelling, cost calculations) with million activities in the portfolio - still works without known problems.



Some single projects like construction of plants, dams, ships consist of more than 40 000 activities.

So don’t worry. If you will have even more RAM memory than 1Gb you will be able to calculate huge programs fast enough.



Best Regards,

Vladimir

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Rafael Davila 👤 Member for 22 years 3 months

Vladimir,



Mike mentioned a few weeks ago he is to start working on the planning for a County Roads or Public Works Division; he is to schedule hundreds of maintenance jobs for a few years horizon, I believe he mentioned three years. He needs to plan ahead because of the many required permits required before a bucket of asphalt can be placed, all sharing the limited equipment owned by the county.



I must assume his software can handle hundreds of jobs on a single portfolio, perhaps 324 jobs if he is to schedule 2 road maintenance jobs per week for three years, each a mere 70 task per job would yield 22,680 tasks.



I would never consider software that cannot handle twice these requirements to be on the safe side, it would be a shame if in the middle of the job we find out the software I recommended runs out of capacity, seems like Asta Power Project can handle this, same as many software on the market, can Spider Project also? Can you tell me the limits on the amount of jobs a single portfolio can handle, same with the number of tasks?



Let’s talk not thousands of separate projects, just a few hundreds, a few shared resources; this seems to me like an everyday scheduling need.



Best regards,

Rafael

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Vladimir Liberzon 👤 Member for 25 years 4 months

Raphael,

in my experience projects in the portfolios are frequently linked. These links may include dependencies between activities of different projects and resources that are used in more than one project.

Calculating portfolio schedule we shall take project interdependencies into consideration.

I did not write about financial side though again - if the financing is limited then portfolio schedule shall take it into account.

So there is a need to calculate the schedule for the whole portfolio model that may consist of thousands separate projects.

Best Regards,

Vladimir

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Raphael M. Dua 👤 Member for 25 years 4 months

Vlad



In your reply to John Cornish



You are making an assumption that ALL portfolio projects used the corporate resources



Well here in Micro Planner land I am running a whole range of projects for ONE client (who is also using P3, P6, OPP, MSP) all the results from each project are shunted up to the corporate Financial System via a product called COBRA, which takes the results from each of the project management software packages and up loads it into FMIS (which is a massive Government based accounting and payment and all things to all men product)- I assume that you use XML methodologies which is how we do it



None of my projects ever uses any body from another project’s resources. Each Project, whilst part of the Portfolio, is not necessarily resource dependent upon another.



If we do have related resource projects then obviously they are run in a single Model using one or another of the software packages which are available.



We use a WBS of fragnets as we did back in 1956-60 for the Polaris project for our COBRA upload



Hope that makes things clear



Raf


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