CMMI is virtual standard scaling software processes capability, but focuses on "What" and are too general to be suitable for different enterprises, especially for development process. Hence, a suit of "software processes improvement solution" referring CMMI level 2~3 for middle size enterprises is established. It is composed of: (1) The software processes specification, which is titled as "Simplified Parallel Processes"; (2) The software processes management tool "Future" based on SPP. SPP model has three layers and manage to answer "How": the top level is project management processes set, the middle layer is project development processes set, the down layer is project supply processes set respectively. Meanwhi le, concrete technical development specification for embedded systems is presented. It?s frank and helpful for every process to obey in an orderly way. This specification and tool will be refined through practices.