| As a basic resource for rural housing construction,homestead is also an important basis for rural economic and social development and social stability.The purpose of rural homestead survey is to clarify the ownership of homestead and houses,ensure the safety of the people’s real estate,reduce the burden and repetitive labor of the people,and effectively protect the legitimate rights and interests of the people in strict accordance with the provisions of the Property Law.At present,the prominent problem in the investigation of homestead is the delay of the project.Problems such as inadequate preparation,improper allocation of resources,fund delay,and poor connection between various processes will have a serious impact on the promotion of the rural homestead survey project.The most prominent factors are the single old schedule management model and the lack of project schedule control experience.This article elaborates on relevant theories such as project schedule management and critical chain technology,compares and analyzes the advantages and disadvantages of existing project schedule management methods,and combines the progress management of Company A’s H County homestead survey project to analyze the current status of progress management and the current problems faced by the project.Key chain technology is introduced to explore the applicability and necessity of key chain technology in rural homestead survey projects from a point to surface perspective.This article is first based on the critical path method,decomposing project tasks through a work breakdown structure,identifying critical paths,and forming a preliminary project schedule.At the same time,it analyzes and optimizes the allocation of resources required for the project,ultimately forming the critical chain of the H County homestead survey project.Based on the task situation of the project’s critical and non critical chains,project buffers and access buffers are set up to analyze various factors that affect the project progress,calculate the impact coefficients of various factors,such as task complexity,risk elasticity coefficient,process impact factor,etc.The buffer size is calculated using a comprehensive evaluation method,inserted into the corresponding positions of the project,and updated to form the final project schedule.At the same time,based on Goldratt’s buffer division concept,the buffer is divided into three equal parts,corresponding warning points are set,and the consumption of the buffer is monitored in real-time to ensure the smooth implementation of the project schedule and ensure the timely delivery of project results.Through the application of critical chain technology,the rural homestead survey project in H County completed the provincial expert group acceptance in advance and delivered to the customer,receiving high praise from the customer.At the same time,it has significantly improved the current situation of project schedule management in Company A,and also promoted the improvement of project management level in the geographic information industry,with significant promotion and application value. |