By Hasso Plattner
In the final fifty years the area has been thoroughly remodeled by utilizing IT. we have reached a brand new inflection aspect. This publication offers, for the 1st time, how in-memory info administration is altering the way in which companies are run. this present day, company information is divided into separate databases for functionality purposes. Multi-core CPUs, huge major thoughts, cloud computing and robust cellular units are serving because the starting place for the transition of organizations clear of this restrictive version. This e-book presents the technical beginning for processing mixed transactional and analytical operations within the similar database. within the 12 months considering the fact that we released the 1st version of this booklet, the functionality profits enabled by way of in-memory know-how in company functions has actually marked an inflection aspect out there. the hot content material during this moment version makes a speciality of the improvement of those in-memory firm purposes, displaying how they leverage the services of in-memory technology. The booklet is meant for collage scholars, IT-professionals and IT-managers, but in addition for senior administration who desire to create new company processes.
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Additional info for In-Memory Data Management: Technology and Applications
In this chapter we provide a brief introduction to modern enterprise applications, describing selected tasks they perform and the business areas that they cover. Enterprise applications are software systems that help organizations to run their businesses. They can add a degree of automation to the implementation of business processes as well as supporting tasks such as planning, data analysis, and data management. A key feature of an enterprise application is its ability to integrate and process data from different business areas, providing a holistic, real-time view of the entire enterprise.
Through NUMA, multiple physical machines can be consolidated into one virtual machine. Note the difference in the commonly used term of virtual machine, where part of a physical machine is provided as a virtual machine. With NUMA, several physical machines fully contribute to the one virtual machine giving the user the impression of working with an extensively large server. With such a virtual machine, the main memory of all nodes and all CPUs can be accessed as local resources. Extensions to the operating system enable the system to efficiently scale out without any need for special remote communication that would have to be handled in the operating system or the applications.
Different enterprise application vendors implemented the business logic at different layers. For example, PeopleSoft preferred to concentrate the business logic at client devices whereas Oracle relies on stored procedures close to the database in the persistency layer to implement business functionality. SAP took a third option of having a thin client while all the business logic resides at scalable application servers. SAP’s approach is shown schematically in Fig. 2. In reality, the given figure would be more complicated, for example, as there is often redundancy added to the system at the database management system and application servers to increase performance.
In-Memory Data Management: Technology and Applications by Hasso Plattner