Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Application menu




In your Intrexx portal, there is the portal menu, which you can edit here, and the application menu, which you can edit on the "Application menu" tab in the properties of your application. It typically consists of links to selected pages in the application.

ARR

Application Request Routing is an extension to Internet Information Services (IIS), which enables an IIS server to function as a load balancer. Click here for more information.

B

Business logic




The Intrexx business logic is responsible for the reading, writing and validation of data, as well as handling default values. Furthermore, it provides a data source abstraction layer.

C

Client

Workstation computer of a user. Uses the applications or resources provided by the server.

Cloud computing

Displacement of IT resources (memory, software) to central servers that are not considered to be part of the company infrastructure but rather made available by independent third-party providers.

Collaboration

Teamwork between employees with the aid of functions of a software platform.

Commit

The current state of applications, layouts or processes is stored in the corresponding Git repository.

Context menu

The context menu of every element can be access with the right mouse button.

Control

Elements, for example from the Applications and Design modules are also called controls.

D

DIV element

The HTML element DIV groups multiple elements together in one area. The application element Grouping can, for example, be defined as a DIV container.

E

F

Fallback value

A parameter, which is demanded by a target page, can be populated by the caller with a value. It is also possible to string fallback values together in this case. Based on the principle of "first match", the first fallback value to deliver a valid value will be used at run-time. Parameter values, which are the same for all or at least the majority of callers, can already be predefined with values at the target page. A fallback value chain can also be created here. If the caller does not provide a valid value for the parameter, then the fallback value chain of the target page will be worked through and the first valid value found will be used. If a valid value for a required parameter cannot be identified neither from the caller or at the target page, then the target page cannot be viewed/used.

Foreign key

Foreign keys are used to identify data records which are stored in other database tables but are related to data records from the current table. Departments are saved in the following table.

Primary keyDepartment
1Sales
2Marketing
3Support

The next table contains employee data.

Primary keyDepartmentFirst nameLast name
13BettyMiller
22SamCook
32RalfMiller
41SamHampton

The primary key of the department is saved as the foreign key in the Department column. This makes it very simple to identify, for example, that Betty Miller works in the Support department.

G

Git

Git is a distributed version management system for files. In Intrexx, Git is used for the History of applications, processes or layouts. Earlier states can be reconstructed with it. The documentation The documentation for Git can be found here.

GUID

The GUID (Globally Unique Identifier) is the unique identifier for each individual element in Intrexx. In expert mode, the GUID of can element can be identified using the Details dialog. Intrexx GUIDs consist of 160 random bits that are generated using a cryptographically secure random generator. This results in hexadecimal coded character strings with a length of 40 characters (e.g. 926B444D13B87CE9EEA22BBF9EDAA27A8C7DFE4D).

H

Horizontal scaling

The performance potential of an IT infrastructure can be increased with vertical or horizontal scaling. Vertical scaling means that existing server hardware is upgraded (CPUs, memory etc.). Horizontal scaling means that new servers are added to increase performance.

I

IIS

Internet Information Services is an extensible web server created by Microsoft. Click here for more information.

IoT - Internet of Things

The Internet of Things is a network that consists of many intelligent devices or systems that interact with one another via M2M (machine to machine). In the health sector, the industrial sector and the enterprise resource planning, objects are being equipped with intelligent sensors for this purpose. Each intelligent object can be identified using a unique internet address and can be addressed in the Internet of Things via this.

Installation directory

Refers to your Intrexx installation directory: on Windows e.g. C:\Program Files\intrexx and on Linux /opt/intrexx/.

J

K

L

M

Mandatory field

If the property Input required has been activated for an element, such as here for the Edit field, the element becomes a mandatory field. Saving a page in the browser is only perormed when all mandatory fields have been filled in. The user will be informed about empty mandatory fields by a notification before saving the data record.

Microsoft Office Graph

The Microsoft Office Graph is a back-end tool in Microsoft Office 365 that interconnects the searching and locating of information in different sources of Microsoft Office 365 automatically. This is a solution that compiles all of the important information and documents across all repositories and Microsoft Office 365 programs. Microsoft Office Graph possesses a uniform programming interface (API) that servers as the access point for every type of search request. The Connector for Microsoft Office 365 uses the Graph API to access content in Microsoft Office 365.

MQTT

MQTT (Message Queuing Telemetry Transport) is a messaging protocol based on TCP. It is open, simple and designed to be implemented easily. MQTT is characterized by low overheads in the communication, but provides stable message delivery nonetheless. With these properties, it is ideal for use in many situations including limited environments, such as for communicating in machine to machine (M2M) and Internet of Things (IoT) contexts with low, limited or expensive network bandwidth, but where information should be provided or consumed regularly despite this. Practial areas of use, where MQTT is already well used, include "Track & Trace" applications that record a wide variety of readings (e.g. temperatures, rotations, water levels etc.). The devices can range from monoboard computers (SoC), such as a Rasberry Pi, which has been expanded with the corresponding sensors, via smartphones, which provide the corresponding values for mobile devices, through to industrial manufacturing facilities, where the production and hardware status should be monitored.

An MQTT client can act as a "Listener", which listens to messages from other MQTT clients, or as a "Publisher", which sends messages. The mapping of the messages is organized into channels, so-called "topics", this means that in the simplest scenarios, two MQTT clients can "talk" when the same topic is selected for both of them. In this simple scenario, this can be enough to receive reports about the water levels in a hydroelectric facility on your smartphone, for example. However, as soon as multiple clients are involved and there are various topics available, or also in use, or access needs to be made secure accordingly, a so-called "Broker", meaning an MQTT server, is a good solution. This also provides the facility of implementing additional protocols such as JMS (Java Messaging Service).

Multi-tenancy

Multi-tenancy is used in information technology, when multiple tenants, meaning customers or orderers, can be served on the same server or software system without them being able to look into each other's data, user management etc. A system does not become multi-tenant capable by creating an individual instance (copy) of the system for each tenant.

N

Namespace

A namespace is a context, within which the names are unique. Namespaces can be hierarchical, meaning the names within each hereachical level are unique. Examples:

O

OData

The Open Data Protocol (OData) is a standardized web protocol. It supports the simple integration and manipulation of data and is designed in a significantly more user-friendly way than previous web services for developing web and mobile applications. OData is based on open web standards like HTTP, Atom Publishing Protocol and JSON, and like the World Wide Web, is constructed based on the REST (Representational State Transfer) architectural style. Complex database requests can be accomplished with OData using the URL alone. Consequently, OData is also known as ODBC for the web.

P

Portal directory

All files of a portal can be found in the Intrexx Portal Server in this directory: on Windows e.g. c:/ProgramData/intrexx/<portalname>. You can determine the portal directory in the portal properties; this is reached from the Portal menu.

Portal Manager

The Portal manager is installed on a client or server of your choice. It controls all of the componenets for developing and managing layouts, menus and applications. The permissions for the portal users for applications and data is also controlled here. The Portal Manager can either be started from the program group or via the desktop shortcut. On Linux systems you will find manager.sh in the folder <intrexx>/client/bin/linux. You can connect to an Intrexx Portal Server and administrate the portals on the start page of the Portal Manager.

Portal page

Relevant information is displayed in portlets on a portal page.

Portal Server

The Intrexx Portal Server is installed on a server and controls all of the transactions from the portals and applications created there. It monitors the permissions within the transactions, controls the entire business logic and manages access to the data sources.

Prefix

A prefix is placed in front of the actual term. If, for example, a data field is called STR_TITLE, TITLE is the term and STR_ is the prefix - the so-called data type prefix.

Primary key

Primary keys are used to uniquely identify data records. In the following example, the last name Miller and the first name Sam occur more than once. With the primary key, which saved in its own database column, each data record can be identified uniquely.

Primary keyFirst nameLast name
1BettyMiller
2SamCook
3RalfMiller
4SamHampton

A primary key can also be assembled from a combination of various attributes, for example when multiple database tables are connected together in another table. It's important here that each combination is unique, meaning it only occurs once.

Processing context

A processing context is generated in Intrexx as soon as a procedure is performed on the Portal Server. The processing context contains the sharedState, session variable, request parameter or the current data record, depending on the context. The lifetime of the processing context spans the beginning and end of the procedure. The objects it contains are not necessarily available from the beginning but can also be added while the procedure is being performed. Sometimes the sharedState is used synonymously with the processing context. Click here for more information about the interface and the interfaces derived from this.

Properties dialog

The settings for an element are available in its properties dialog and can be modified there. The properties dialog can be opened by double-clicking on the element or via the context menu / Properties.

Q

R

Repository

A repository is a project archive where files are stored which are managed by Git. In Intrexx, a repository corresponds in each case to the directory of an application, process or layout. A repository is created in Git for each application, process or layout as soon as an entry is created in the history when publishing.

Restart Intrexx services

Intrexx services can be restarted, for example, in Windows under Control panel / Administrative tools. You can recognize the Intrexx portal services because of the prefix Intrexx Portal followed by the name of the portal. The Intrexx Supervisor service is responsible for the distribution of licenses, downloading software updates among others. This very rarely needs to be restarted.

Request parameter

A request parameter is a parameter that has been transferred from a client (typically a web browser) to the server and is provided there via the request object.

S

Semantic value

Semantic values can be assigned to parameters. Semantic values are particularly helpful for commonly occurring parameters to make it clear which context the parameter is in. For example, the semantic value "Customer number" makes it quickly clear that a parameter with the name "LID" refers to the ID of a customer.

Session variable

For practically every procedure in Intrexx, which is performed by a user or technical user, session objects are generated on the server by a login. Variables can be created for these sessions objects. The values of these can be accessed in every context where this session is in use. The value exists from the time the variable is created until it is either modified or deleted, or the session is logged out.

sharedState

An optional global shared state is available in many event sources and timers. If this is defined, the same shared state is used for all events of the source.

T

Tagging

Tagging describes the labelling of content. Tags are not predefined and can be assigned freely. The tags are gathered together to form a so-called tag cloud that provides information about how often a tag was assigned – the larger a tag is shown in the cloud, the more often it has been used.

Temporary directory

Temporary directories are used for caching files to be able to, for example, generate them fully without other applications accessing them during the process. Furthermore, the data is not stored in the memory during the entire generation process in this way. You can access the temporary directory via the environment variable %TEMP% (Explorer or command line) in windows (e.g. %USERPROFILE%%/AppData/Local/Temp). The Intrexx client saves open processes in this directory, for example. Log files from processes are stored as XML files here. Normally, the Intrexx server uses other temporary directories, such as the /tmp directory in the Installation directory or internal/tmp in the Portal directory.

U

V

W

Web service

Web services are services that provide functions and data via the internet. Similarly to a search engine, queries will be sent from a sender, which in this case is not a person, but a software program. The web service returns the results to the program querying it. Web services can be provided for use either internally or externally to the company. If you would like to, for example, find the name of a bank based on a routing code, a web service can determine and return the desired data using an operation. The operations are described using WSDL (Web Services Description Language) files. The exchange of information takes place via an exchange of XML files. In order to use a web service, the URL with which the web service is identified must be known. With Intrexx, web service provisions can be consumed without requiring additional programming effort. Furthermore, you can provide your own web services.

X

Y

Z