KC 3.3.3- Model Selection Process

There are different models each designed for a specific purpose. Some of the models are listed below:

1. ISO/IEC 9000
2. ISO/IEC 12207
3. ISO/IEC 15504
4. ISO/IEC 15288
5. CMMI Source Models

• IPD-CMM v0.98
• EIA/IS 731 (SECM)
• SW-CMM v 2, draft C

6. CMMI A-Spec
7. IEEE
8. SW-CMM v1.1
9. EIA 632
10. SA-CMM
11. FAA-CMM
12. P-CMM

Now coming to the point, how an IT organization selects a model depends on many factors which include:

1. Applicability of model to the IT organization’s goals and objectives. For example, CMMI model alone offers Software Engg./ Systems Engg./ Integrated Process & Product Development/ Supplier Systems for Process Improvement & higher maturities. Likewise the other models offer different features the suitability of which depends on the nature of products/services that the organisation delivers.
2. Management commitment to include needed:

i. Budget – One of the important factors which decides the model that is going to be chosen. There may be similar models which suits the organisation processes, but the practices that need to be followed and the training required for the staff may differ. Based on all these constraints, the model can be chosen.

ii. Schedule – The time frame in which the goal has to be achieved plays an important role. Based on the schedule, the organisation can choose the model.

iii. Resources – Availability & other factors related to resources too may affect the model that is going to be chosen.

3. Need for Baseline Assessments – This is discussed in detail in the next topic “Models for Assessment & Baseline”
4. Need for measurable goals and objectives – This too is one need that can play a big role in the selection of model. This too can be found out in detail in the next topic “Models for Assessment & Baseline”