FREQUENTLY ASKED QUESTIONS (FAQ)

We've assembled a list of questions and answers that we hope will be useful to evaluators and users of D*ChoC.
  • Q. I don't have any special computer training but I think that D*ChoC can be useful in my endeavor. Can I still use D*ChoC for my project?
    A.
    Yes. You can go to the Getting Started page for more information. There are also options for workgroup and enterprise deployments. The latter will need some assistance from skilled IT people.

  • Q. How much does D*ChoC cost?
    A.
    D*Choc is available on cloud market places and is sold as a Database as a Service application. The license costs are described in full on the product description page. There are additional charges for use of the cloud service platform.

  • Q. Can I use D*ChoC to solve a complicated provenance problem?
    A.
    D*Choc is designed to handle provenance problems right out of the box. All you need to know is how, so please read the "Using D*ChoC To Handle Provenance" White Paper.

  • Q. Can D*ChoC be extended?
    A.
    D*Choc is designed to be user extensible. New information item types can be defined by adding new details to existing types, including Items, Users, Processes and Workflows and any extensions of those types. New connection types can be defined between any information item types.

  • Q. What database is D*Choc using?
    A.
    D*Choc uses Objectivity ThingSpan, a highly scalable, distributed graph database and analytics platform. ThingSpan is based on Objectivity/DB, the industries most scalable distributed object and graph database.

  • Q. Can I use ThingSpan and/or Objectivity/DB with D*ChoC?
    A.
    Yes. All you have to do is add the necessary licenses. ThingSpan runs on Spark and can automatically generate DataFrames, so you can use tools such as Spark SQL, Spark GraphX and MLlib. There are APIs for C#, C++ and Java. You can use the Linux or Windows operating systems. D*ChoC currently uses Windows.

  • Q. How many items and relationships can I store in D*ChoC?
    A.
    Objectivity/DB, the underlying database, is in regular use in production systems that process tens of trillions of items and relationships per day. The theoretical limit to the amount of data that D*ChoC could handle are in the yottabyte range.

  • Q. Can I bulk load data into a DChoC instead of keying it all in?
    A.
    Yes, you can load Information items or Connections from a Comma Separated Values (CSV) file in these formats.

  • Q. What security does D*ChoC provide for my data?
    A.
    Your stored data is secured within Microsoft Azure using a username and password. You can also purchase a Secure Sockets Layer (SSL) certificate from a specialist supplier and install it in your D*ChoC configuration. It protects data moving between your compute and D*ChoC. You should contact your Administrator about that.

  • Q. My organization allows me to access applications hosted on Azure as long as they don't rely on any sites on the global Internet. Can I safely use D*ChoC?
    A.
    Yes. Although you may have found this site on the "public" WWW the version of it that D*ChoC references is safely encapsulated within the Azure environment.

  • Q. Can I run D*ChoC inhouse or on a cloud platform that you don't currently support?
    A.
    Yes. We can separately license D*ChoC as a Linux, MacOS or Windows container, either inhouse or on a compatible cloud platform.

  • Q. How do I deploy D*ChoC?
    A.
    Take a look at the Learn area of this site for advice on preparing to deploy D*ChoC and the Getting Started area to deploy a personal, workgroup or enterprise version.

  • Q. I don't have any programmers available. Can you help me design and deploy a D*Choc system?
    A.
    Yes. We can either provide services ourselves or put you in contact with trained partners.

  • Q. We are an IT development services provider. How do we become an Objectivity D*ChoC Partner?
    A.
    Please take a look at the "Support" links in the Support section of the Learn page.

  • Q. Can I develop specialized Chain of Custody applications using D*ChoC and deploy them on my own servers or in cloud market places?
    A.
    Yes. Your customers would pay for platform and D*ChoC cloud services in addition to your own product license fees.

  • Q. I haven't found an answer in the Help pages or here. Now what should I do?
    A.
    You should join the Objectivity Developer Network. or contact us via the "Learn"page.