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  • BigData Solutions

    HIGH TECH GENERATION SOFTWARE

    No 6. Phan Dinh Giot, Tan Binh, HCMC

    Email: info@htgsoft.com

    Phone: +84 909 087056

    Date: Apr 02, 2015

    Version: 1.0

    Last Update: Apr 02, 2015

    Prepared for: New Customer Prepared by: H H. Le (Product Manager)

    TABLE OF CONTENTS

    1 . Project Overview ............................................................................................................... 2

    1.1. Business Cases ..................................................................................................................................... 2

    1.2. Platform & Devices ............................................................................................................................ 2

    2 . Technical Requirement ................................................................................................... 3

    2.1. Goals of Architecture ........................................................................................................................ 3

    2.2. End-users Requirements ................................................................................................................ 5

    3 . Technical Approach .......................................................................................................... 6

    3.1. Overview Architecture ..................................................................................................................... 6

    3.2. Server Side ............................................................................................................................................ 6

    3.3. Client Side .............................................................................................................................................. 9

    4 . Services information ..................................................................................................... 10

    4.1. Packages ............................................................................................................................................... 10

    4.2. Development Process ..................................................................................................................... 10

    4.3. Human Resource .............................................................................................................................. 10

    4.4. Timeline ................................................................................................................................................ 11

    4.5. Budget ................................................................................................................................................... 11

    4.6. Payment Method .................................................................. Error! Bookmark not defined.

  • 2

    1 . Project Overview

    1.1. Business Cases

    For Developer

    - Access world wide agents

    - Stock/Invetory management

    - Track/Log user viewed project

    - Reporting tools & insights

    - Sale & Marketing management

    - Instant email notifications

    Distribution Network

    - Search projects

    - View live price lists

    - Access project information

    - Reserve direct with the seller

    - Sale & Marketing management

    - Contract management

    1.2. Platform & Devices

    Web Responsive.

    - 2 versions (PC + tablet and mobile)

    - Display compatibility: Internet Explorer 9.0+, Firefox 15+, Chrome 20+, Safari

    6+

    Mobile Application:

    - IOS version 6 & above

    - Androidversion 4.1 & above, iOS

  • 3

    2 . Technical Requirement

    2.1. Goals of Architecture

    The architecture has been designed to build a more reliable, robust and scalable

    distributed systems. Below are our goals and principles of the cloud base architecture:

    High Availability:

    An global marketplace for off-the-plan properties must be a non-stop service.

    Because of being unavailable for even minutes can result in thousands or millions of

    dollars in lost revenue. So that the uptime of the website is absolutely critical to the

    reputation and functionality of the website. We can say the system must be available for

    24 hours a day, 7 days a week and 365 days a year.

  • 4

    Robust Performance:

    The speed of the website affects usage and user satisfaction, as well as search

    engine rankings, a factor that directly correlates to revenue and retention. As a result,

    the architecture of the system is optimized for fast responses and low latency. The

    threshold of response time should be < 5 seconds (5s) per request.

    More Reliability:

    A system needs to be reliable, such that a request for data will consistently return

    the same data. The reliability of the system requires the data must be consistent and the

    high read and write performance under highly concurrent conditions. Users transaction

    like reserving an apartment or update commission rate must be correctly handle. Every

    searching requests must return the accuracy results.

    Fast Scalability:

    The effort required to increase capacity to handle greater amounts of load,

    commonly referred to as the scalability of the system. Scalability can refer to many

    different parameters of the system: how much additional traffic can it handle, how easy

    is it to add more storage capacity, or even how many more transactions can be

    processed.

    Ease Manageability:

    The manageability of the system equates to the scalability of operations:

    maintenance and updates. The goals are the ease of diagnosing and understanding

    problems when they occur, ease of making updates or modifications, and how simple the

    system is to operate.

  • 5

    Predictable Cost:

    The system should be guaranteed for predictable costs with no surprises or over-

    use costs. In additional, the system leverages the cloud computing and it will be different

    with traditional system. The cost of traditional system will be fixed cost because owner

    must buy the servers and hire a team to operate the systems. The predictable cost cloud

    system must be a variable cost and the cost will be only increase with the increment of

    the revenue.

    2.2. End-users Requirements

    Beside the technical requirements, the architecture should be designed to

    support the end user. There are list of end-users requirements:

    Internationalization And Localization (i18n)

    The system serves world wide users who come from many countries and speech

    many languages. To help user to be combatable and easy to use the system, the website

    must have ability to translate to local languages; support local time-zones (e.g.: GMT+8

    for China or Daylight Saving Time for Australia, ); support multiple number/currency

    formats, date time formats; ability to display text from right-to-left for Dubai customer

    may be.

    Responsive and mobility display:

    The system must well display on a rich of devices as smartphones, smart-

    watches, tablets, big/high resolution screens or projectors.

    Security:

    The system must have a strong and flexible access control list. Each of developer

    or property seller have a fully controlling and granting access to their sale properties.

    Other roles of agencies, accountants, advisors or financial planner will have a secure

    access to the system.

  • 6

    3 . Technical Approach

    3.1. Overview Architecture

    MVC Model.

    Cloud-oriented, fully support with Amazon Web Service.

    Capability to widen application, and integrate with other system.

    3.2. Server Side

    Using PhalconPHPhttp://phalconphp.com/en/ framework (latest), MVC model,

    fast, robust and reliable web framework, easy to understand and apply, completely

    support RESTful (easy to develop mobile application or allow other systems to

    integrate).

    Apply Role Based Access Control design pattern to secure the whole application.

    Some complicated operations such as concurrency update, transactional

    management will be handled with Phalcon ORM framework.

    OS / Hosting

    We run Ubuntu Linux 14.04 (Trusty Tahr) on Amazon EC2.

    Load Balancing

  • 7

    Using Amazons Elastic Load Balancer, with 1-3 Apache2 instances behind it that

    can be swapped in and out (and are automatically taken out of rotation if they fail a

    health check).

    Application Servers

    We run PhalconPHPhttp://phalconphp.com/en/ on Amazon Medium-CPU

    machines, and as our usage grows weve gone from just a few of these machines to over

    10 of them. It requires the designing system should be easy to horizontally scale as they

    are stateless.

    Big Data Processing System

    We use the graph database to build an intelligent system. Some features like

    recommendation with ability to recommend suitable properties for an investor or

    recommend a lead customer to an agencies.

    Most of our data (users, photo, tags, etc) lives in MariaDBhttps://mariadb.org/

    that run on Amazon High-CPU Extra-Large EC2 instance with EBS optimized for high

    input.

    We also

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