Design And Implementation Of A Time Series Education Big Data Visualization Platform For Heterogeneous Systems

With the process of education information,which generate the educational data has the characteristics of large volume,many types,and different structures.For managers who want to improve the level of education management through education information,they want from these large-scale and multi-dimensional data to find the educational data trends through manual analysis,then to form the correct concepts.However,the views are basically impossible.Educational information cannot effectively help decision-makers in higher vocational campuses to exert their auxiliary advantages in the process of teaching diagnosis and reform.The rapid development of data visualization technology provides strong technical support and application direction for the comprehensive application of big education data.This article is based on the development of heterogeneous system of big education data and data visualization technology,which implements an educational big data visualization platform for higher vocational teaching diagnosis and reform.This article studies various visualization methods and the ETL process of heterogeneous data.At the same time,it is based on the visualization method of time series data and hierarchical data,which proposes a hierarchical data visualization method based on zoom layout strategy.Then apply this method on the data visualization platform,which is completed the visual display of teachers' research data.Starting from the entrance of educational data collection,this platform implements many subsystems,such as teacher development platform;student development platform;scientific research management system;professional management system and so on.After data collection is completed,multi-collected data is processed by ETL data extraction,data conversion,and data loading of heterogeneous system data,and then the corresponding functional modules are visualized for the processed data.The five-level education data large-screen monitoring page is realized,which can display the multi-dimensional visualization of the education data,then achieving the purpose of higher vocational teaching diagnosis and reform.Finally,a functional test and a non-functional test are carried out to verify that the platform basically fulfilled the user's functional requirements and usage requirements.