1 / 8

what is HTTP? - the underlying communication protocol used by the www

Learn about HTTP, HTML, JavaScript, SQL, XML, ER modeling, and XML vocabularies. Understand their uses in web development and data management.

millardc
Download Presentation

what is HTTP? - the underlying communication protocol used by the www

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. what is HTTP? - the underlying communication protocol used by the www - common HTTP headers?

  2. what is HTML? - a mark-up vocabulary how is HTML used? - to format documents used on the www

  3. what is JavaScript? - a scripting language implemented in browsers what is JavaScript used for? - to implement browser side logic (ajax, localStorage(html5)) - to manipulate the DOM

  4. what is a database? - a repository of data - schema, api, ++ - types of DB – relational, xml, key/value pairs what is SQL - a query language implemented by all RDBMS - two parts – DDL & DML - know basic SQL syntax (select, join, group by, order by etc.)

  5. what is ER modeling? • to diagrammatically model data entities & relationships • conceptual (high-level) models (m<->m allowed) • logical (low-level) models (m<->m resolved) • identify PK’s and FK’s • use case tools -> generate code (qsee, xml-modeller)

  6. what is xml? - a grammar -> generates -> vocabularies - well-formed (<-machine-processable) + valid (<-schema) - deductive chains <-> RDF(<-FOAF(<-Ontologies(owl)) example xml vocabularies? - RSS, KML, ATOM, RDF(<-FOAF<-Ontologies(owl)) + 1000's of domain-specific others why is xml useful? - rich data -> data + schema -> semantics

  7. what is xml used for? - messaging over HTTP - localised inter-process messaging - rich-data repositories (post-relational dbs) - mapping other reposotories (rdbms, $key/$value stores, RDF triples) - browser-side data stores (html5 localStorage)

  8. Understand & apply conceptual / logical modelling from a given scenario • Understand and explain how the following technologies are used -> RSS, SQL, HTML, XML, XSLT, JavaScript, PHP • Show appreciation of the business environment and possible constraints – costs, skills, applying business rules, security, accessibility, integration, use of services etc. etc.

More Related