HP Embedded Capture Device License 1-100 E-LTU Manual de usuario Pagina 37
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After the Result Message screen displays, the user is redirected to the Screen selection. At this point, a Cycle
has completed, and the user can continue executing parts of the workflow having access and/or reusing
session metadata.
1.5.1 Design rules
HP Embedded Capture is designed to follow certain rules that help in understanding the main behavior by
learning the common situations. When designing complex workflows, it is important to keep these rules in
mind in order to achieve the expected results.
1.5.1.1 Workflow navigation: Unique or multiple child elements
There are two types of nodes on the system: Those which require user interaction; and those which are
immediate, and can execute tasks without the need to stop the workflow or interact with the user.
Interactive
●
Menu option — Always show this option on a selection menu screen.
●
Form screen — Requires user interaction to capture metadata.
●
Dialog screen — Free text screen that shows information messages requiring the user to press a
button.
●
Scan Options screen — This screen may require some user input, or just show a scan options summary.
Immediate
●
Scan — Scan operation on device with predefined scan options.
●
Process — Execution of a process (digital send …).
●
Redirection screen — Automatic redirection to another node in the workflow (Workflow designer only).
When the user navigates a workflow having multiple available nodes (conditions = true or no conditions), the
device will show a selection menu to choose the correct path on the navigation. The label that identifies each
node on the menu is the Title specified by the administrator.
When there is just one available node, and this node is of immediate type, it will be executed. If you wish to
avoid the automatic execution, create a Menu Option node before the immediate one.
1.5.1.2 Metadata scope: Session vs cycles
During a session, all metadata is stored in the workflow. This is considered the Session Scope. Each graph
cycle has its own scope into the session. This is considered the Cycle Scope.
If a graph has cycles, the generated metadata into that cycle will only be visible during that cycle (to be used
in metadata, summary screens, etc…). If the cycle is finished, and the workflow jumps to an already
navigated state, all session metadata information from cycle 1 is hidden to other cycles.
Summary:
Cycle metadata information will be accessible during one cycle only, by any node into that cycle.
Full session information (including all cycles and the rest of metadata) will be accessible anywhere, anytime.
1.5.1.3 Scheduling processes (process execution synchronization)
One of the capabilities of HP Embedded Capture is that it can execute processes in the background, while still
allowing users to access the device.
Section 1.5 Workflow design 27
- HP Embedded Capture (HP EC) 1
- Table of contents 3
- List of tables 7
- List of figures 8
- 1 Introduction 11
- 1.3 System overview 13
- 1.3.1.1 Embedded Capture 14
- 1.3.1.2 TWAIN drivers 14
- 1.3.1.3 Workflow designer 14
- 1.3.1.4 API (optional) 14
- 1.3.2 Hardware components 15
- 1.3.4 Installation 16
- 1.4.1 Session 19
- 1.4.2 Graph 19
- 1.4.3 Node types 20
- 1.4.4 Cycle 21
- 1.4.5 Data validation 21
- 1.4.6 Macros 22
- Table 1-3 Scan macros 23
- 1-4 Process macros 24
- Table 1-5 User interface 25
- 1.4.6.3 Macros usage examples 26
- 1.4.8 Processes 31
- 1.4.9 Scheduled processes 32
- 1.4.9.1 Scheduling options 33
- 1.4.10 Garbage collector 34
- 1.5 Workflow design 35
- 1.5.1 Design rules 37
- 1.5.1.5 Scans and processes 39
- 2 Workflow Designer 40
- 2.2.1 Home button 45
- 2.2.2 Menu option 45
- 2.2.3 Form tab / Forms screen 46
- 2-3 Text fields 49
- 2-4 Integer fields 50
- Table 2-5 Decimal fields 51
- 2-6 Boolean fields 51
- Table 2-7 Radio list 52
- 2-8 Combo list 52
- 2-9 Labels 52
- Table 2-9 Labels (continued) 53
- 2.2.4 Dialog screen 54
- 2.2.5 Scan 56
- Scan settings 57
- 2.2.6 Process 60
- Network folder 63
- Printer parameters 68
- 2.2.7 Shortcut 70
- 2.3.1 Home button 72
- 2.3.2 Menu option 73
- 2.3.3 Scan job 74
- Table 2-16 Email parameters 78
- 2-18 FTP parameters 80
- 2.5 Macros helper 83
- 2.6 Tutorial and examples 84
- 2.6.1.2 Basic graph 85
- Figure 2-45 Basic graph 86
- 2.6.2 Conditional workflow 88
- 2.6.5.1 Authentication agent 94
- 2.6.6 Failover destination 96
- 3.1 Overview 97
- 3.2 Glossary 97
- 3.4 Queued Scan mode 98
- 3.5 Direct Scan mode 99
- 3.6 Using the TWAIN driver 100
- 3.6.3 Driver user interface 102
- 3.7 Technical Specifications 105
- 96 Chapter 3 TWAIN 106
- 3.7.3.1 Native transfer 107
- 3.7.3.2 Disk transfer 108
- 3.8.1 Supported devices 109
- 3.8.3 Account settings 109
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