1. Project estimates must be based on the application’s architecture. Making estimates based on an application’s architecture should give you a clear idea of the length of the entire development project phase. Moreover, an architecture-based estimation provides you a macro-level view of the resources needed to complete the project.
2. Project estimations should also come from the ground up. All estimates must add up, and estimating the collective efforts of the production teams that work on the application’s modules helps identify the number of in-house and outsourced consultants that you need to hire for the entire project, as well as have a clear idea of the collective man-hours required to code modules or finish all features of the application. Ground-up estimates are provided by project team members and do not necessarily match top-level estimates exactly. In this case, it is best to add a percentage of architecture-based estimates to give room to possible reworks, risks, and other events that may or may not be within the control of the project staff.
3. Do not forget modular estimates. Once you have a clear idea of the architecture, it becomes easier to identify the modules that make up the entirety of the application. Knowing the nature of these modules should help you identify which can be done in-house or onshore, or by an offshore development team. Moreover, given the location and team composition of each development team that works on a module, it becomes easier to identify the technical and financial resources needed to work on the codes.
4. Development language matters. Whether the development language is Java, .Net, C++ or any other popular language used by software engineers, team that will be hired for the project must be knowledgeable in it. Some development efforts require higher skills in these languages, while some only need basic functional knowledge, and the levels of specialization in any of these languages have corresponding rates. Most of the time, the chosen development language depends on the chosen platform, and certain platforms run on specialized hardware.
5. You cannot promise upper management dramatic costs from offshoring. While there are greater savings from having development work done by offshore teams composed of workers whose rates are significantly lower from onshore staff, you must consider communication, knowledge transfer, technical set-up, and software installation costs in your financial estimates. Estimating costs is often more about managing expectations, but as the project matures, it should be clearer whether the money spent on it was money that was spent well.
6. Project estimation software and tools help identify “what-if” scenarios. Over the years, project managers have devised ways to automate project schedule, framework, cost, and staffing estimates. Some estimation applications also have sample historical data or models based on real-world examples. If your business has a lot in common with the samples in the estimation tool, it can help you identify what-if scenarios and in turn include risks, buffers, and iteration estimates.
7. Price break-down helps in prioritization. Breaking down the total cost of the project helps management decide which parts of a system should be prioritized, delayed, or even cancel. Estimating costs for a new project may not be easy, but project sponsors and managers must be able to know and agree on the breakdown of costs of development, technical requirements, and overhead.
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