Research On The Schedule Management Of CPON OLT R&D Project Of SS Company

Under the background of national broadband speed-up and upgrading,the current indoors optical cable is upgraded from 100 m to 1000 m,and the demand for network equipment is increasing from 4G to 5G.As the core component of optical cable communication network,optical device products also lead the phenomenon of rapid increase of market demand and product iteration.At the same time,the price of optical device products decreases rapidly year by year with the passage of time.Therefore,the faster the R & D Progress of the product,the earlier it is put on the market,the greater economic benefits can be brought to the company.As one of the traditional optical communication device manufacturers in China,SS company has put forward higher requirements for the project schedule of R&D products in the context of increasingly fierce competition in the communication industry.This paper first research the history of SS company's project schedule management and finds out the problems existing in SS company's R&D project schedule management.The scientific and systematic project management method is used for verification in the development project of Combo PON OLT OSA product(hereinafter referred to as CPON OLT).Firstly,a strong matrix project organization structure with senior leaders as the project manager was established.Then,WBS was used to decompose the work task of CPON OLT product development project,and PERT three-point estimation method was used to estimate project duration and make schedule plan.However,in the calculation of completion probability,it is found that the probability of completion within the PERT project schedule is low,so the key chain method is introduced in the optimization of the project schedule.According to the relevant requirements of the key chain method,the buffer was calculated first,and then the buffer was set up to generate a new project schedule,and the buffer mechanism three-color method was used to manage the project schedule,and finally the project was completed ahead of schedule.The successful practice of the key chain method in CPON OLT development project schedule management shows that the key chain method has a good adaptability to the SS company.It has a good improvement effect on typical problems in schedule management such as "student syndrome" and "Parkinson's law".The key chain method also has a good effect on project schedule optimization and time limit compression.At the same time,the project management activities for other product lines of SS company also have a strong reference significance.Finally,as a famous optical communication product supplier in China,SS company's products are representative of the industry.The successful practice of SS company's project schedule management also has certain research and reference value for similar companies in the industry.