Platform as a Service 1.

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M cdù ³PaaS platform´ có 1 s c i mph bi n, chúngtôingh cónh ngcáchti pc nkhácnhauphùh pv inh ngnhuc ukhácnhau.Chúng ta cóth chia môitr ngthành 3 lo i: Integrated lifecycle platform Anchored lifecycle platform Enabling technologies as a platform Integrated lifecycle platforms M ts platform chínhcungc pchonh ngnhàpháttri nph nm mm t i uki nhoànch nh t oranh ng ngd ngkhôngc nmuanh ngcôngc cánhân.Víd , nhàcungc p platform s cungc pchonh ngnhàpháttri nph nm mm tgóihoànch nhbaog mh th ngho t ng, ngônng ch ngtrình, b om t, l utr , h th ngki msoátcôngc h ptác, c ngnh nh ngcônc xâyd ngh th ngt ngtáccho website. Nh ngcôngtyPaaSth ngbaog mnh ngph nsau: A workflow engine (b máythicông) Development tools (côngc pháttri n) A testing environment (môitr ngki mtra) An ability to integrate databases (kh n ngh inh pd li u) Third-party tools and services (côngc chobênth bavành ngd chv kèmtheo) Nh ng plat form nàycungc pnh ngd chv nh nh ng stack ctíchh pchu áovàcóhìnhdángb tm tv inh ngph nm mtrunggianvàth ngcónh nggi aodi nph mm mchungchochínhnó. 2 vìd d th ynh tc anh ng ³integrated lifecycle platforms´ làb máytìmki mgoolevà Microsoft azure, nós dc chúng ta th olu nk h ntorngch ng ³Getting Insidethe Integrated Lifecycle Platform,´ ngaysauch ngnày Anchored lifecycle platforms Although anchored platforms have most of the same characteristics as the integrated lifecycle platform, there is one key difference: These environments have a packaged business software at the core. The most prominent example of an anchored platform is Salesforce.com and its Force.com platform. Likewise, Intuit is leveraging its QuickBooks financial software environment to create an anchored platform. Enabling technologies as a platform Not all platforms in the cloud include a full lifecycle environment. Some platforms are focused on providing specialized capabilities. Some of thesecapa-

bilities may be a specific tool. For example, although Amazon.com provides a comprehensive IaaS platform, it also offers platform tools such as SimpleDB and Simple Query Service (SQS). Other enabling technology environments (such as Rightscale) provide an integrated management platform designed for the cloud. Hyperic, a division of Springsource (recently acquired by VMWare), offers a cloud-based monitoring environment. WaveMaker lets users customize their platform and allows developers to reuse existing code within the PaaS environment. There are testing-based and social networking-based services as well. The following sections in this chapter take a closer look at these three types ofPaaS. To do this, we look at some of the key vendors that provide these capabilities. Clearly, there are many other players besides the ones we list here, and there will be even more before this book is even published. Our goal is to give you an understanding of how each of these PaaS approaches works.

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