Power BI Desktop 報告中的協助工具Accessibility in Power BI Desktop reports

Power BI Desktop 有功能可讓行動不便人士更輕鬆地使用 Power BI Desktop 報告並與之互動。Power BI Desktop has features that enable people with disabilities to more easily consume and interact with Power BI Desktop reports. 這些功能包括能夠利用鍵盤或螢幕助讀程式來使用報告、利用 Tab 鍵聚焦於頁面上的不同物件,以及在視覺效果中貼心地使用標記。These features include the ability to consume a report using the keyboard or a screen reader, tabbing to focus on various objects on a page, and thoughtful use of markers in visualizations.

在折線圖和區域圖中使用不同的標記來改善協助工具

注意

2017 年 6 月 Power BI Desktop 和更新版本提供這些協助工具功能。These accessibility features are available with the June 2017 Power BI Desktop and later releases. 未來的版本也預計還有其他協助工具功能。Additional accessibility functionality is planned for future releases as well.

利用鍵盤或螢幕助讀程式來使用 Power BI Desktop 報告Consuming a Power BI Desktop report with a keyboard or screen reader

自 2017 年 9 月起的 Power BI Desktop 版本開始,您即可按 ?Beginning with the September 2017 release of Power BI Desktop, you can press the ? 鍵,以顯示描述 Power BI Desktop 所提供之協助工具鍵盤快速鍵的視窗。key to show a window that describes the accessibility keyboard shortcuts available in Power BI Desktop.

在

透過協助工具增強功能,您可以利用鍵盤或螢幕助讀程式,並搭配下列技巧來使用 Power BI Desktop 報告:With the accessibility enhancements, you can consume a Power BI Desktop report with a keyboard or a screen reader with the following techniques:

您可以使用 Ctrl+F6,在報告頁面索引標籤之間或給定報告頁面上的物件之間切換焦點You can switch focus between the report page tabs, or objects on a given report page, using Ctrl+F6.

  • 當焦點在「報告頁面索引標籤」時,可使用Tab 鍵或「方向」鍵將焦點從一個報告頁面移至下一個報告頁面。When focus is on report page tabs, use the Tab or Arrow keys to move focus from one report page to the next. 不論目前是否已選取報告頁面的標題,螢幕助讀程式都會讀出標題。The title of the report page, and whether it is currently selected, is read out by the screen reader. 若要載入焦點目前所在的報告頁面,請使用 Enter 鍵或「空格」鍵。To load the report page currently under focus, use the Enter or Space key.
  • 當焦點在載入的「報告頁面」時,請使用Tab 鍵將焦點移至頁面上的每個物件,包括所有文字方塊、影像、圖形和圖表。When focus is on a loaded report page, use the Tab key to shift focus to each object on the page, which includes all textboxes, images, shapes, and charts. 螢幕助讀程式會朗讀物件的類型,以及作者為該物件提供的描述。The screen reader reads the type of object, and a description of that object that's provided by its author.

您可以按 Alt+Shift+F10,將焦點移至 [視覺效果] 功能表。You can press Alt+Shift+F10 to move focus to a visual menu.

您可以按 Alt+Shift+F11,呈現 [See Data]\ (查閱資料) 視窗的可存取版本。You can press Alt+Shift+F11 to present an accessible version of the See data window.

在 Power BI Desktop 中,按 Alt+Shift+F11,以顯示視覺效果可存取的 [See Data] (查閱資料) 視窗

建立這些協助工具新增項目的目的,是為了讓使用者可以藉由螢幕助讀程式和鍵盤瀏覽,完整取用 Power BI Desktop 報表。These accessibility additions were created to let users fully consume Power BI Desktop reports using a screen reader and keyboard navigation.

建立可存取之報告的秘訣Tips for creating accessible reports

下列秘訣可協助您建立更容易存取的 Power BI Desktop報告。The following tips can help you create Power BI Desktop reports that are more accessible.

  • 對於線條區域組合視覺效果,以及散佈圖泡泡圖,請開啟標記,並針對每個線條使用不同的「標記圖形」。For Line, Area, and Combo visuals, as well as for Scatter and Bubble visuals, turn markers on, and use a different Marker shape for each line.

    • 若要開啟「標記」,請在 [視覺效果] 窗格中選取 [格式],展開 [圖形] 區段,然後向下捲動找出 [標記] 開關,並切換到 [開啟]。To turn Markers on, select the Format section in the Visualizations pane, expand the Shapes section, then scroll down to find the Markers toggle and turn it to On.
    • 然後,在該 [圖形]區段中,從下拉式清單方塊選取每個條線的名稱 (或區域名稱,如果您使用區域圖的話)。Then, select the name of each line (or area, if using an Area chart) from the drop-down box in that Shapes section. 在下拉式清單底下,針對選取之線條所使用的標記,您可以調整許多層面,包括其形狀、色彩和大小。Below the drop-down, you can then adjust many aspects of the marker used for the selected line, including its shape, color, and size.

    在折線圖和區域圖中使用不同的標記來改善協助工具

    • 針對每個線條使用不同的「標記圖形」時,報告取用者可以更容易區分不同的線條 (或區域)。Using a different Marker shape for each line makes it easier for report consumers to differentiate lines (or areas) from each other.
  • 延續上一個項目符號內容,請勿依賴色彩來傳達資訊。As a follow on to the previous bullet, don't rely on color to convey information. 使用線條上的標記 (如先前項目符號內容所述的標記) 會很有幫助。Using shapes on lines (markers, as described in the previous bullets) is helpful.
  • 從佈景主題資源庫中,選取高對比和色盲無礙的「佈景主題」,然後使用佈景主題設定預覽功能來匯入。Select a theme that is high contrast and color blind friendly from the theme gallery, and import it using the Theming preview feature.
  • 對於報告上的每個物件,提供「替代文字」。For every object on a report, provide Alt Text. 這樣可確保報告取用者了解您試著透過視覺效果傳達的內容,即使他們看不到視覺效果、影像、圖形或文字方塊也無妨。Doing so ensures that consumers of your report understand what you are trying to communicate with a visual, even if they cannot see the visual, image, shape, or textbox. 若要針對 Power BI Desktop 報告上的任何物件提供「替代文字」,您可以選取物件 (例如視覺效果、圖形等),然後在 [視覺效果] 窗格中,選取 [格式] 區段,展開 [一般],然後捲動至底部,並填入 [替代文字] 文字方塊。You can provide Alt Text for any object on a Power BI Desktop report by selecting the object (such as a visual, shape, etc.) and in the Visualizations pane, select the Format section, expand General, then scroll to the bottom and fill in the Alt Text textbox.

    在 [視覺效果] > [格式] > [一般] > [替代文字] 方塊中可以為報告中的任何物件新增替代文字

  • 確定您的報表在文字與任何背景色彩之間有足夠的對比。Make sure your reports have sufficient contrast between text and any background colors.
  • 使用可輕鬆閱讀的文字大小和字型。Use text sizes and fonts that are easily readable. 文字大小或字型若太小而難以閱讀,則為無用的協助工具。Small text size, or fonts that might be difficult to read, are unhelpful for accessibility.
  • 在所有視覺效果中包含標題、軸標籤和資料標籤。Include a title, axis labels, and data labels in all visuals.

考量與限制Considerations and limitations

協助工具功能已知有一些問題和限制,如下列清單所述:There are a few known issues and limitations to the accessibility features, described in the following list:

  • JAWS 適用於在 Power BI 服務中檢視的報表,包括任何內嵌報表。JAWS is supported in reports that are viewed in the Power BI service, including any embedded reports. Power BI Desktop 也支援 JAWS,但您必須先開啟螢幕助讀程式才能開啟 Power BI Desktop 檔案,以使螢幕朗讀功能正常運作。JAWS is also supported in Power BI Desktop, however you must open the screen reader before opening any Power BI Desktop files, in order for screen reading to work properly.

後續步驟Next steps