Gsd   systematic task allocation evaluation in distributed software development
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Gsd systematic task allocation evaluation in distributed software development

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Systematic Task Allocation in Global Software Development

Systematic Task Allocation in Global Software Development

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Gsd systematic task allocation evaluation in distributed software development Presentation Transcript

  • 1. Systematic Task Allocation Evaluation in Distributed Software Development Systematic Task Allocation Evaluation in Distributed Software Development October 16, 2012
  • 2. Systematic Task Allocation Evaluation in Distributed Software Development IntroductionWhat is meant by a Systematic Task Allocation Evaluating various task allocation alternatives and to effectively establish a customized task allocation practices in an organization.
  • 3. Systematic Task Allocation Evaluation in Distributed Software Development IntroductionWhy we need a Systematic Task Allocation 1 Impact factors 2 Constraints
  • 4. Systematic Task Allocation Evaluation in Distributed Software Development Scenario of a Task Allocation Decision ProblemEmperical Basis for the Scenario Types of distributed development : 1 Outsourcing 2 Captive Offshoring Standard Software Custom Software
  • 5. Systematic Task Allocation Evaluation in Distributed Software Development Scenario of a Task Allocation Decision Problem OutsourcingOutsourcing 1 Complete projects or products to be developed are usually assigned to outside contractors. 2 Usually within the national boundaries..
  • 6. Systematic Task Allocation Evaluation in Distributed Software Development Scenario of a Task Allocation Decision Problem Captive OffshoringCaptive Offshoring 1 Complete projects or products to be developed are usually assigned within an organization that has globally distributed sites. 2 Usually outside the national boundaries.. Figure: Offshoring Market
  • 7. Systematic Task Allocation Evaluation in Distributed Software Development Scenario of a Task Allocation Decision Problem Captive Offshoring –> Standard SoftwareStandard Software Assignment is done based on specialized teams that evolve over a long time.
  • 8. Systematic Task Allocation Evaluation in Distributed Software Development Scenario of a Task Allocation Decision Problem Captive Offshoring –> Custom SoftwareCustom Software 1 Tasks are allocated based on availability of resources. 2 There are multiple influencing factors like cost, expertise, proximity to customer etc. 3 Mainly, the aim is to reduce the cost of development.
  • 9. Systematic Task Allocation Evaluation in Distributed Software Development Task Allocation ScenarioTask Allocation Scenario GlobalSoft is a large European based company. Develops individual software products for customers in Germany and UK. Its main development centers are located in Frankfurt and Cologne, Germany and smaller subsideries in London to be close to its British customers. Recently opened a site in Bangalore..!! Why..?
  • 10. Systematic Task Allocation Evaluation in Distributed Software Development Task Allocation ScenarioTask Allocation Scenario contd.. Now, they have a customer BigIndustries located in London. The old projects were developed at London, Frankfurt and Cologne. But now, there is also a possibility to assign some work to Bangalore. The design and architecture has already been developed and they want to distribute the development work.
  • 11. Systematic Task Allocation Evaluation in Distributed Software Development ApproachApproach Overview Goal 1 : Identify the project specific influencing factors for a task allocation decision and their impact. Goal 2 : Evalvate the possible task allocation alternatives according to the project specific influencing factiors.
  • 12. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Define ViewpointDefine Viewpoint Decide who should be making the decisions. . Scenario : At GlobalSoft, the task allocation is done by the responsible project manager. He was also incharge of the previous projects of BigIndustries (and the customer was happy :) )
  • 13. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Define ContextDefine Context Define the input for the task allocation decision . Scenario : The context of the project is developed as shown.
  • 14. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Define FocusDefine Focus What is the criteria of the evaluation...? Cost..? Quality..? or something else..? . Scenario : At GlobalSoft, the only criterion is the total development costs. But, how do we define this ”Development cost”..?
  • 15. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Define Variation FactorsDefine Variation Factor Variation factors are all those factors that have an allocation-dependent influence on the evaluation criterion. . Scenario : The variation categories were identified as: 1 Site characteristics: Analyst capability, programmer capability, language and tool experience, personnel continuity, customer proximity. 2 Site dependencies : Cultural dependencies, time-zone differences 3 Task characteristics : Size 4 Task dependencies: Coupling 5 Task-site dependencies : Application experience, platform experience
  • 16. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Define BaselineDefine Baseline The goal of this step is to define the baseline for scuccess measures. Its on what basis you would decide to allocate the tasks..?? . Scenario : GlobalSoft uses COCOMO II model to establish a baseline.
  • 17. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Define Impact of Variation FactorsDefine Impact of Variation Factors In this step, the impact of every variation factor on every criterion in focus is evaluated. . Scenario : GlobalSoft uses a CoBRA approach for cost estimation.
  • 18. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Assess the Variation FactorsAssess the Variation Factors For all tasks and sites identified, the values of the variation factors are now assessed for the project in hand. . Scenario : The project manager assesses all the factors and print them into an excel model.
  • 19. Systematic Task Allocation Evaluation in Distributed Software Development Process Steps Evaluate Assignment alternativesEvaluate Assignment alternatives Finally every possible assignments can now be evaluated using the results from the previous steps. . Scenario : The manager proposes 3 alternatives: 1 Assign all the work to Europe 2 Assign testing work to India 3 Assign everything to India
  • 20. Systematic Task Allocation Evaluation in Distributed Software Development Assumptions made in the paperAssumptions made in the paper In the paper, the author makes assumptions based on an optimistic scenario. . In real world all necessary information about the relavent influencing factors and their impact are not available in a quantified form. . The selection of total development cost as the only criterion may have made the numbers but this doesn’t happen in the real world. . The available knowledge is never quantifiable. . It also assumes high degree of freedom in task allocation decision.
  • 21. Systematic Task Allocation Evaluation in Distributed Software Development Thank You Thank You